Process for making cellular polyvinyl chloride products and...

Details Process for making cellular polyvinyl chloride products and... Process for making cellular polyvinyl chloride products and...

C - Chemistry, Metallurgy

08

J

403/69

C08J 9/10 (2006.01) C08K 5/41 (2006.01)

Patent

CA 1093750

C-4338 PROCESS FOR MAKING CELLULAR POLYVINYL CHLORIDE PRODUCTS AND PRODUCTS THEREOF Abstract of the Disclosure Cellular polyvinyl chloride products of good cell quality are made utilizing a lower fusion temperature than conventionally employed by incorporating in a polyvinyl chlor- ide containing plastisol, which has a fusion temperature of from about 200°F. to about 300°F., an effective amount of a blowing agent selected from the group consisting of (1) a mixture of benzene sulfonyl hydrazide and 4,4'-oxybis (benzene sulfonyl hydrazide), (2) a mixture of toluene sulfonyl hydra- zide and 4,4'-oxybis (benzene sulfonyl hydrazide), and (3) 4,4'-oxybis (benzene sulfonyl hydrazide) alone, and an organic base or oxidizing agent which acts as an activator for said blowing agent.

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